Table 2.

Summary of the parameters of EEG signals.

Group	Driving Duration (mins)
	0	15	30	45	60
Alert Group
α	5.71 ± 1.43	6.19 ± 1.70	5.86 ± 2.07	5.38 ± 1.68	6.22 ± 2.03
β	6.23 ± 1.55	6.54 ± 1.77	7.23 ± 2.52	5.89 ± 1.14	5.85 ± 0.67
θ	9.75 ± 4.34	9.46 ± 3.59	8.32 ± 2.14	9.37 ± 3.26	11.93 ± 4.61
(θ + α)/β	2.54 ± 0.77	2.34 ± 0.38	2.02 ± 0.45	2.49 ± 0.55	3.12 ± 0.87
θ/β	1.60 ± 0.71	1.36 ± 0.35	1.22 ± 0.33	1.59 ± 0.51	2.08 ± 0.84
θ/(α + β)	0.83 ± 0.35	0.69 ± 0.18	0.67 ± 1.55	0.84 ± 0.26	1.02 ± 0.41
(θ + α)/(α + β)	1.30 ± 0.34	1.18 ± 0.17	1.11 ± 0.18	1.31 ± 0.26	1.53 ± 0.41
Fatigue Group
α	7.63 ± 1.94	6.80 ± 2.22	6.97 ± 1.81	7.53 ± 1.73	7.70 ± 3.16
β	10.42 ± 4.04	9.85 ± 5.18	8.59 ± 3.90	8.50 ± 2.68	9.47 ± 5.17
θ	12.73 ± 4.96	11.69 ± 5.72	11.79 ± 4.57	13.28 ± 6.17	10.41 ± 2.38
(θ + α)/β	2.19 ± 0.95	2.16 ± 0.91	2.42 ± 0.92	2.64 ± 0.85	2.47 ± 0.90
θ/β	1.39 ± 0.74	1.38 ± 0.69	1.55 ± 0.70	1.72 ± 0.68	1.54 ± 0.67
θ/(α + β)	0.74 ± 0.31	0.74 ± 0.29	0.80 ± 0.29	0.87 ± 0.30	0.77 ± 0.27
(θ + α)/(α + β)	1.18 ± 0.37	1.16 ± 0.36	1.25 ± 0.37	1.34 ± 0.34	1.24 ± 0.34